---
title: "21 Inch Wiper Blades — $36K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/21-inch-wiper-blades"
last_updated: "2026-08-09T08:59:46.912Z"
locale: en
meta:
description: "Niche score 43/100 · $36K/yr market · 28K searches/yr · $16.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 43/100 · $36K/yr market · 28K searches/yr · $16.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "21 Inch Wiper Blades — $36K/yr Amazon US Niche (2026) - Flapen"
---
# **21 inch wiper blades**
**Skip it**
A small market ($36K/yr) — this niche doesn't clear our bar today.
Market size 9Growth 10Conversion 79Competition 45Returns 75Price range 70Avg price 78Brand share 50Review moat 14Quality gap 53
**Conversion**
**Great****7.9%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$16.36**
avg listing price — sweet spot $15–$100
**Returns**
**Great****2.0%**
return rate — above 5% kills the launch gate
**Price range**
**Good****$4.82–$38.49**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****75%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****58%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Bad****23,469.12**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-29.8%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$36K**
$36K/yr · 28K searches
According to Flapen's Amazon United States niche tracking, 21 inch wiper blades is a $36K/yr Amazon United States market (28K searches/yr). The top 5 brands hold 75% of demand. Verdict: Skip it — 43/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **21 inch wiper blades market data**
- **Units sold / yr**
- **3K–3K**
- avg 100–250/product
- **Revenue / yr**
- **$41K–$49K**
- units × avg price
- **Conversion rate**
- **7.9%**
- **Avg BSR**
- **#106**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **76%**
- **Out of stock**
- **7.7%**
- **Avg brand age**
- **72 months**
- **Avg seller age**
- **174 days**
## **Competition & brand share**
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**16 **▲rising
**Sellers**
**66**
**Top-5 brand share**
**75%**
Top 20: 100%
**Top-5 click share**
**58%**
Top 20: 95%
**Open market**
**21%**
- Rain-X38% - PARRATI18% - RACOONA8% - JINGOU7% - YJWKJZ4% - Bosch3%
## **Demand**
Weekly Amazon search volume, last 14 weeks — -29.8% search growth over the last 90 days.
600400Apr '26Apr '26May '26May '26May '26Jun '26Jun '26
[**Open Trend **](https://flapen.com/research/us/automotive/21-inch-wiper-blades/trend)
## **Top 21 inch wiper blades search terms**
- **21 inch wiper blades**11K/yr-31.2%7.3% conv. - **21 wiper blade**7K/yr-34.0%6.5% conv. - **windshield wipers 21 inch**4K/yr+4.3%5.7% conv. - **21 wiper blades 2 pack**3K/yr-28.8%6.6% conv. - **21 windshield wiper blades**3K/yr-50.2%9.3% conv. [**All search terms **](https://flapen.com/research/us/automotive/21-inch-wiper-blades/search-terms)
## **Top 21 inch wiper blades products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$2K10%$4K15%$5K20%$7K101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**OEM QUALITY 21 + 21 PARRATI Premium All-Season Windshield Wiper Blades (Set of 2)**PARRATI**$17.77**4.5★24,703 rev](https://www.amazon.com/dp/B0894DSYWF) [2**Rain-X RX30221 WeatherBeater Wiper Blades 21 Windshield Wipers (Pack Of 1) Automotive Replacement Windshield Wiper Blades That Meet Or Exceed OEM Quality And Durability Standards**Rain-X**$12.38**4.5★66,706 rev](https://www.amazon.com/dp/B0009JKI7W) [3**Rain-X 5079278-2 Repellency Water Repellent Wiper Blades 21 Windshield Wiper All Weather Streak-Free for Enhanced Visibility w/Water Repellency Formula**Rain-X**$16.44**4.4★119,593 rev](https://www.amazon.com/dp/B015JTJQTM) [4**RACOONA OEM QUALITY Premium All-Season Windshield Wiper Blades Pack of 2 Durable Stable And Quiet Windshield Wiper Blades Automotive Replacement Winshield Wipers For My Car (21+21)**RACOONA**$10.89**4.5★765 rev](https://www.amazon.com/dp/B0CZNV4XXX) [5![Rain-X 810321 Repellency Water Repellent Wiper Blades 21 Windshield Wiper All Weather Streak-Free for Enhanced Visibility w/Water Repellency Formula [Amazon Exclusive]](https://m.media-amazon.com/images/I/31Rv9YiknRL.jpg)**Rain-X 810321 Repellency Water Repellent Wiper Blades 21 Windshield Wiper All Weather Streak-Free for Enhanced Visibility w/Water Repellency Formula \[Amazon Exclusive\]**Rain-X**$19.44**4.4★119,593 rev](https://www.amazon.com/dp/B0DXVZMP1J)
**~~View all top sellers →~~**
### **Newest**
by launch date
[![Rain-X 810321 Repellency Water Repellent Wiper Blades 21 Windshield Wiper All Weather Streak-Free for Enhanced Visibility w/Water Repellency Formula [Amazon Exclusive]](https://m.media-amazon.com/images/I/31Rv9YiknRL.jpg)**Rain-X 810321 Repellency Water Repellent Wiper Blades 21 Windshield Wiper All Weather Streak-Free for Enhanced Visibility w/Water Repellency Formula \[Amazon Exclusive\]**Rain-X**$19.44**119,593 rev1y ago](https://www.amazon.com/dp/B0DXVZMP1J) [![Rain-X 810355 Repellency Water Repellent Wiper Blades 22 & 21 Windshield Wipers All Weather Streak-Free for Enhanced Visibility w/Water Repellency Formula [Amazon Exclusive]](https://m.media-amazon.com/images/I/41OqneVm2FL.jpg)**Rain-X 810355 Repellency Water Repellent Wiper Blades 22 & 21 Windshield Wipers All Weather Streak-Free for Enhanced Visibility w/Water Repellency Formula \[Amazon Exclusive\]**Rain-X**$38.49**119,593 rev1y ago](https://www.amazon.com/dp/B0DXVZGRR7) [**JINGOU 21 + 18 Front Windshield Wiper Blades Compatible with 2019 GMC Canyon 2001-2005 Kia Rio 2003-2008 Toyota Matrix OEM QUALITY Premium All-Season Automotive Replacement Wipers(Pack of 2)**JINGOU**$14.48**3,256 rev1y ago](https://www.amazon.com/dp/B0DQTYXH8P) [**JINGOU 21+21 Wiper Blades Compatible with Dodge Durango 2002-2003 Premium All-Season Windshield Wiper Blades-Driver and Passenger Side Automotive Replacement Windshield Wiper Blade (Pack Of 2)**JINGOU**$14.17**458 rev1y ago](https://www.amazon.com/dp/B0DGSXHQY8) [**3 Pack Windshield Wiper Blades Compatible with 2014-2021 Jeep Grand Cherokee Original Factory Quality Front Rear Wipers Blade Set for My Car - 22 21 11**VEIGEIR**$16.05**2,555 rev1y ago](https://www.amazon.com/dp/B0DC5HR762)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**JINGOU 21 + 18 Front Windshield Wiper Blades Compatible with 2019 GMC Canyon 2001-2005 Kia Rio 2003-2008 Toyota Matrix OEM QUALITY Premium All-Season Automotive Replacement Wipers(Pack of 2)**JINGOU**$14.48**4.5★**▲ 248%**](https://www.amazon.com/dp/B0DQTYXH8P) [![Rain-X 810321 Repellency Water Repellent Wiper Blades 21 Windshield Wiper All Weather Streak-Free for Enhanced Visibility w/Water Repellency Formula [Amazon Exclusive]](https://m.media-amazon.com/images/I/31Rv9YiknRL.jpg)**Rain-X 810321 Repellency Water Repellent Wiper Blades 21 Windshield Wiper All Weather Streak-Free for Enhanced Visibility w/Water Repellency Formula \[Amazon Exclusive\]**Rain-X**$19.44**4.4★**▲ 220%**](https://www.amazon.com/dp/B0DXVZMP1J) [**VTOGOI OEM Quality 21+21 Windshield Wiper Blades Premium All-Seasons J-Hook Replacement Wiper Blades (2 Pack)**VTOGOI**$15.48**4.5★**▲ 133%**](https://www.amazon.com/dp/B08PF6K7CT) [**Rain-X RX30121 Wiper Blade - 21**Rain-X**$12.44**4.2★**▲ 99%**](https://www.amazon.com/dp/B0003041C0) [**OEM QUALITY 22 + 21 PARRATI Premium All-Season Windshield Wiper Blades (Set of 2)**PARRATI**$17.68**4.5★**▲ 80%**](https://www.amazon.com/dp/B088RH3XQN)
**~~View all trending →~~**
## **What buyers say about 21 inch wiper blades**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**21%
*“Great deal”*
**Quality-Overall**15%
*“Way better than cheap brands”*
**Size-Overall**14%
*“fit the vehicle perfectly”*
**Assembly/Installation**12%
*“Easy Install”*
**Advertised Vs Actual Product**5%
*“Does the job”*
**Ease Of Use**4%
*“Ease”*
**Efficiency**4%
*“Works great”*
**Ease Of Cleaning**4%
*“These were the easiest installation wiper blades”*
**Functionality-Overall**3%
*“function great”*
**Add-Ons/Attachments**2%
*“Adapters included to fit any vehicle it seems”*
### **What buyers complain about **
**Windshield Issues**19%
*“While raining it is difficult to see out of the windshield as these wipers were basically pushing the water around”*
**Quality-Overall**12%
*“doesnt look good at all”*
**Compatibility-Overall**11%
*“Did not fit 2002 Passat as advertised”*
**Water Resistance**6%
*“they're already leaving lots of water on the glass after about a month of being on my car”*
**Size-Overall**6%
*“Doesnt fit like it said”*
**Value For Money**5%
*“These are expensive”*
**Functionality-Overall**4%
*“doesn't work”*
**Noise Level**3%
*“Popping sound”*
**Color**3%
*“it's GREEN”*
**Material Quality**3%
*“theyre made out of cheap rubber”*
### **Top return reasons **
**Size-Overall**34%
**Windshield Issues**25%
**Compatibility-Overall**15%
**Defective Material/Parts**3%
**Advertised Vs Actual Product**3%
**Value For Money**3%
**Add-Ons/Attachments**3%
**Assembly/Installation**3%
**Material Quality**3%
**Quality-Overall**1%
## **Common questions**
- **Is 21 inch wiper blades profitable to sell on Amazon United States?**
- The niche generates $36K/yr across 25 tracked products. 90-day search growth is -29.8%. Flapen's verdict: Skip it (43/100).
- **How competitive is the 21 inch wiper blades niche?**
- 16 brands and 66 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 75% of demand.
- **What do buyers complain about in 21 inch wiper blades?**
- Top complaints mined from reviews: Windshield Issues, Quality-Overall, Compatibility-Overall. The return rate is 2.0%.
- **What does it cost to enter the 21 inch wiper blades niche?**
- Listings span $4.82–$38.49; the average listing price is $16.36 (sweet spot $15–$100). The average incumbent carries 23,469 reviews — the moat a new listing must climb.
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